|
Implant Supported |
 |
Root Supported |
Benefits:
- No abutment
parallelism required. Corrects up to 24º
divergence.
- Lowest force
application on abutments.
- Applicable for direct
placement into root, cast coping for root, or custom keeper for implants.
- Easiest patient
insertion and removal--no path of insertion.
- Space friendly--2
sizes available.
- Double encapsulation
ensures no corrosion.
Selection
Both a regular and mini size magnet are available. The mini magnet is reduced in
size by 30% for when space is limited.
| |
Regular Magnet
Mini Magnet |
|
Regular Magnet with Regular
Keeper = 1.5lbs retention
Mini Magnet with Mini Keeper =
1.0lbs retention
Combination of Regular/Mini components
= 1.25lbs retention
|
| |
5.5mm Ø
3.9mm Ø |
|
|
3.4mm ↕
6.9mm ↕
|
|
2.4mm ↕
3.6mm ↕
|
| |
4.0mm Ø
3.5mm Ø |
|
| |
Regular Keeper
Mini Keeper |
|
The neodymium magnet has an indefinite life for long
lasting retention.
Design Solution
|
|
* No abutment parallelism required * No path of
insertion/removal required
* Undercuts may be engaged
*No wear, no servicing requirements
* Overdentures may be root supported, or Implant supported |
The Shiner SR system provides ideal retention and abutment protection for maxillary and
mandibular overdentures. No abutment parallelism is required. The
prosthesis flange must be adapted to the ridge and undercut to ensure prosthesis stability.
The magnet system works especially well with implants as magnets
reduce lateral
loading.
Dentist Instructions
Laboratory Instructions
The Dentist may choose to cement the keeper/toothpiece, utilize a cast coping, or thread the
implant keeper directly into the implant fixture. The new denture may either be
laboratory processed, or picked up chairside.
Direct Cementation Option
1. Decoronate the tooth to the height of the crest of the ridge and complete
endodontic therapy.
2. Select the appropriate regular or mini tooth keeper according to the size and
position of the root. The mini keeper/toothpiece is
used in small diameter or tilted roots.
3 |
4  |
3. Refine the canal with the pilot diamond. Use
full length for the regular keeper, and only to the indentation on the diamond for a
mini keeper.
4. Use the appropriate (regular or mini)
sizing diamond
to create the recess for the keeper. Do not force the sizing diamond below the face
of the root, as the keeper should be slightly elevated above the root face.
Do not "pump" the diamond sizing bur as this will
oversize the preparation.
|
5 |
6a |
| 5. Cement the keeper into the root. The
black
impression piece may be inserted in the keeper to be used as a handle during cementation.
6.
Slightly chamfer the root away from the edge of the keeper to allow for free
movement and rotation of the prosthesis. The keeper should be slightly above the
face of the root. Do not polish or grind the actual keeper.
The Shiner Keepers cemented in place. |
6b |
6c |
| |
Cast Coping Option
(see
Laboratory Instructions)
When the prognosis indicates a cast coping, complete the root preparation making sure
there is adequate space for both the keeper and cast coping. Do NOT use the pilot
and/or sizing diamond!
Take a normal abutment impression and send to the laboratory with prescription to construct a
precious metal cast coping and keeper. Upon return from the laboratory, the cast
coping and keeper are tried in and cemented.
New Denture Technique
7a |
7b |
|
7.
After the toothpiece/keeper or coping is cemented, position
the black impression piece
so that it firmly seats in the recess in the
keeper.
Make an accurate impression with material of choice.
|
|
8 |
8.
Remove and inspect the impression. Be sure that the face
of the impression piece is free of impression material. Using
curved-beak cotton pliers, press the white model piece onto the black
impression piece.
Be sure the model piece is fully seated and indexed to the impression
piece. |
Either pour master cast, or send the impression to the laboratory to pour master cast.
Prescribe a "bite block" or occlusal rim for vertical registration.
Return bite block, or occlusal rim, to the laboratory. Prescribe esthetic wax set
up with necessary information.
Return approved esthetic wax set up to the laboratory for acrylic resin processing.
9 |
9.
Deliver the finished prosthesis to the patient. Use the
appropriate tool (regular = blue, mini = gold) to vertically adjust magnet to keeper
contact (retention) by threading the magnet up or down in small increments. Assure
full contact between the magnet and keeper. Marking
indicators are excellent for this purpose.
Please note: If the magnet and keeper are in premature contact,
the prosthesis will rock. If the magnet and keeper are out of contact, retention
will be inadequate. |
Chairside Pick-Up Option
|
10 |
10.
Relieve the tissue or underside of the prosthesis to receive the magnet(s). Open
a small hole or window access through to the lingual of the prosthesis. |
Do not pick up the magnet with self cure resin.
11a |
11b
|
|
11. Place the black threaded
processing piece over the thin
metal protector disk
and on to the keeper.
This will eliminate acrylic resin from entering the holes in the
processing piece. |
12 |
12.
Mix self-curing resin until it reaches a doughy consistency and place
a small amount on top of the processing piece. Seat the prosthesis and
let the resin set.
Do not have the patient bite.
Use finger pressure only above the magnets.
Remove the prosthesis. |
|
13a |
13b |
|
13.
Remove the thin metal protector disk with the AF Bur.
|
14a |
14b |
|
14.
Unthread the black (threaded) processing piece from the prosthesis with the appropriate (
regular = blue, mini = gold) tool.
|
15 |
15.
The threaded recess created by the black processing pieces. |
|
|
|
16a |
16b |
|
16.
Thread the magnet into the prosthesis using the appropriate tool.
Go slow: Do not force the magnet into the prosthesis.
If the magnet does not easily thread in to the prosthesis,
check for flash resin at the starting edge of the threads. Remove any
flash with a bard parker blade or other sharp instrument.
Do not attempt to thread the magnet too far or too tight into the
prosthesis. As soon as the magnet is finger tight, stop
threading. Excess force may damage either the outer threaded Delrin
housing or the magnet.
|
|
17 |
17. Deliver
prosthesis and adjust magnet position vertically (if needed) to ensure proper magnet to
keeper contact (retention). |
Dentist Reline Procedure
Due to normal tissue resorption, the prosthesis should be relined on a regular basis.
1 |
1.
Use the appropriate tool to unthread the magnet from the
prosthesis. |
2 |
2.
Position the impression piece so the post seats in the recess
of the tooth piece/keeper. |
Relieve the denture base to insure that the prosthesis will fully seat without
contacting or impinging upon the black processing piece.
Make a reline impression being sure that the index post on the black processing piece
fully seats into the index recess in the keeper. Remove the impression. Be
sure that the face of the black processing piece if free of impression material.
Fully seat the white model piece onto the black processing piece in the impression.
Send to the lab.
Deliver the finished prosthesis to the patient. Use the appropriate tool to
adjust retention by threading the magnet up or down in small increments to assure full
contact between the magnet and keeper.
Patient Care
Patients should be instructed not to soak or clean the prosthesis in acidic or strong
denture cleaning solutions or bleach. Mild soap and water may be used without any
potential damage to the magnets.
T0016.REV.00
|
